To explore coordination of care between the outpatient clinics for people with MS and the municipalities regarding high intensity physiotherapy, qualitative interviews will be conducted with selected health personnel (MS-nurses, neurologists, PTs, a total of 8-10 subjects) at the hospitals' outpatient clinics and in municipalities (general practitioners, PTs, a total of 8-10 subjects), before the intervention (for the standard care) and after the RCT (for the new organizational model). The interviews will focus on structures for collaboration and content of service.